<template>
  <transition name="foodfade">
    <div class="food" v-show="showFlag" ref="food">
      <div class="food-content">
        <div class="image-header">
          <img :src="food.image">
          <div class="back" @click="hide">
            <i class="icon-arrow_lift"></i>
          </div>
        </div>
        <div class="content">
          <h1 class="title">{{food.name}}</h1>
          <div class="detail">
            <span class="sell-count">月售{{food.sellCount}}份</span>
            <span class="rating">好评率{{food.rating}}%</span>
          </div>
          <div class="price">
            <span class="now">&yen;{{food.price}}</span>
            <span class="old" v-show="food.oldPrice">&yen;{{food.oldPrice}}</span>
          </div>
          <div class="cartcontrol-wrapper">
            <cartcontrol :food="food" @increment="incrementTotal"></cartcontrol>
          </div>
          <transition name="fade">
            <div class="buy" v-show="!food.count || food.count === 0" @click.stop.prevent="addFirst">加入购物车</div>
          </transition>
        </div>
        <split v-show="food.info"></split>
        <div class="info" v-show="food.info">
          <h1 class="title">商品信息</h1>
          <p class="text">{{food.info}}></p>
        </div>
        <split v-show="food.info"></split>
        <div class="rating">
          <h1 class="title">商品评价</h1>
          <ratingselect @selected="selectRating" @toggled="toggleContent" :selectType="selectType" :onlyContent="onlyContent" :desc="desc" :ratings="food.ratings"></ratingselect>
          <div class="rating-wrapper" border-1px>
            <ul v-show="food.ratings && food.ratings.length">
              <li v-show="needShow(rating.rateType,rating.text)" v-for="rating in food.ratings" class="rating-item">
                <div class="user">
                  <span class="name">{{rating.username}}</span>
                  <img :src="rating.avatar" class="avatar" width="12" height="12">
                </div>
                <div class="time">{{rating.rateTime | formatDate}}</div>
                <p class="text">
                  <span :class="{'icon-thumb_up' :rating.rateType===0,'icon-thumb_down':rating.rateType===1}"></span>{{rating.text}}
                </p>
              </li>
            </ul>
            <div class="no-rating" v-show="!food.ratings || !food.ratings.length">暂无评价</div>
          </div>
        </div>
      </div>
    </div>
  </transition>
</template>
<script >
import Vue from 'vue';
import BScroll from 'better-scroll';
import cartcontrol from '../cartcontrol/cartcontrol';
import split from '../split/split';
import ratingselect from '../ratingselect/ratingselect';
import { formatDate } from '../../common/js/data';
// const POSITIVE = 0;   //满意
// const NEGATIVE = 1;  //不满意
const ALL = 2;   //全部
export default {
  props: {
    food: {
      type: Object
    }
  },
  data() {
    return {
      showFlag: false,
      selectType: ALL,
      onlyContent: false,
      desc: {
        all: '全部',
        positive: '推荐',
        negative: '吐槽'
      }
    };
  },
  methods: {
    show() {
      this.showFlag = true;
      this.selectType = ALL;
      this.onlyContent = false;
      //页面dom加载完成后
      this.$nextTick(() => {
        if (!this.scroll) {
          this.scroll = new BScroll(this.$refs.food, {
            click: true
          });
        } else {
          this.scroll.refresh();
        }
      });
    },
    hide() {
      this.showFlag = false;
    },
    addFirst(event) {
      if (!event._constructed) {
        return;
      }
      this.$emit('increment', event.target);
      Vue.set(this.food, 'count', 1);
    },
    incrementTotal(target) {
      this.$emit('increment', target);
    },
    needShow(type, text) {
      if (this.onlyContent && !text) {
        return false;
      }
      if (this.selectType === ALL) {
        return true;
      } else {
        return type === this.selectType;
      }
    },
    selectRating(type) {
      this.selectType = type;
      this.$nextTick(() => {
        this.scroll.refresh();
      });
    },
    toggleContent() {
      this.onlyContent = !this.onlyContent;
      this.$nextTick(() => {
        this.scroll.refresh();
      });
    }
  },
  filters: {
    formatDate(time) {
      let date = new Date(time);
      return formatDate(date, 'yyyy-MM-dd hh:mm');
    }
  },
  components: {
    cartcontrol,
    split,
    ratingselect
  }
};
</script>
<style lang="stylus" rel="stylesheet/stylus">
@import "../../common/stylus/mixin";
  .food
    position:fixed
    left:0
    top:0
    bottom:48px
    z-index:30
    width:100%
    background:#fff
    &.foodfade-enter-active, &.foodfade-leave-active
      transition: all 0.4s linear
    &.foodfade-enter, &.foodfade-leave-active
      transform: translate3d(100%, 0, 0)
    .image-header
      position:relative
      width:100%
      height:0
      padding-top:100%
      img
        position:absolute
        top:0
        left:0
        width:100%
        height:100%
      .back 
        position:absolute
        top:10px
        right:0
        .icon-arrow_lift
          display:block
          padding:10px
          font-size:35px
          color:#fff
    .content
      position:relative
      padding:18px
      .title
        line-height:14px
        margin-bottom:8px  
        font-size:14px
        font-weight:700
        color:rgb(7,17,27)
      .detail 
        margin-bottom:18px
        line-height:10px
        height:10px
        font-size:0
        .sell-count,.rating
          font-size:10px
          color:rgb(147,153,159)
        .sell-count
          margin-right:12px
      .price
        font-weight:700
        line-height:24px
        .now
          margin-right:8px
          font-size:14px
          color:rgb(240,20,20)   
        .old
          text-decoration:line-height
          font-size:10px
          color:rgb(147,153,159)
      .cartcontrol-wrapper
        position:absolute
        right:12px
        bottom:12px
      .buy
        position: absolute
        right: 18px
        bottom: 18px
        z-index: 10
        height: 24px
        line-height: 24px
        padding: 0 12px
        box-sizing: border-box
        border-radius: 12px
        font-size: 10px
        color: #fff
        background: rgb(0, 160, 220)
        &.fade-enter-active,&.fade-leave-active
          transition:all .4s
        &.fade-enter,&.fade-leave-active 
          opacity: 0    
    .info
      padding:18px
      .title
        line-height:14px
        margin-bottom:6px
        font-size:14px
        color:rgb(7,17,27)    
      .text
        line-height:24px
        padding:0 8px
        font-size:12px
        font-weight:200
        color:rgb(77,85,93)
    .rating
      padding-top:18px
      .title
        line-height:14px
        margin-left:18px
        font-size:14px
        color:rgb(7,17,27)  
      .rating-wrapper
        padding:0 18px
        .rating-item
          position:relative
          padding:16px 0
          border-1px(rgba(7,17,27,0.1))
          .user
            position:absolute
            right:0
            top:16px
            line-height:12px
            font-size:0
            .name
              display:inline-block
              margin-right:6px
              vertical-align:top
              font-size:10px
              color:rgb(147,153,159) 
            .avatar
              border-radius:50%
          .time
            margin-bottom:6px
            lint-height:12px
            font-size:10px
            color:rgb(147,153,159) 
          .text
            line-height:16px
            font-size:12px
            color:rgb(7,17,27)
            .icon-thumb_up , .icon-thumb_down
              margin-right:4px
              line-height:16px
              font-size:12px
            .icon-thumb_up
              color:rgb(0,160,220)
            .icon-thumb_down
              color:rgb(147,153,159)
        .no-rating
          padding:16px 0
          font-size:12px
          color:rgb(147,153,159)

</style>
